Troubleshooting SSL related issues (Server Certificate) The Hash value seen in Working scenario is the Thumbprint of your SSL certificate Notice that the GUID is all zero in a non-working scenario You might see the Hash either has some value or is blank Even if you remove the certificate from the website, and then run netsh http show ssl, the website will still list the GUID as all 0s If you see the GUID as "{0000 000}", there's a problem